develops_fromrespiratory tractAnatomical structure that is part of the respiratory system. In mammals consists of upper and lower tractsEHDAA2:0001606EHDAA:1568EHDAA:2219EMAPA:16737FMA:265130OpenCyc:Mx4rvvM--pwpEbGdrcN5Y29ycAUBERON:0000065VHOG:0000393uberonrespiratory airwayendoderm-derived structurepresumptive gutrespiratory primordium